alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET TROJAN Covenant Framework HTTP Beacon"; flow:established,to_server; content:"POST"; http_method; content:"=eyJHVUlEIjoi"; http_client_body; fast_pattern; pcre:"/^.+(IlR5cGUiO?|JUeXBlIj|iVHlwZSI6)/PR"; threshold: type limit, count 1, seconds 60, track by_src; reference:url,github.com/cobbr/Covenant; reference:url,posts.specterops.io/entering-a-covenant-net-command-and-control-e11038bcf462; classtype:trojan-activity; sid:2027793; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, signature_severity Major, created_at 2019_08_04, updated_at 2019_08_04;)

Added 2019-08-05 18:56:07 UTC


Topic revision: r1 - 2019-08-05 - TWikiGuest
 
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